Clutch-pulley.



No. 31,740. Patented Aug. 22, I899. J. E. FRANKLIN. CLUTCH PULLEY.

(Applicat ionfiled Jam 19, 1899.)

.(No Model.) 2 Sheets-$heet l,

W/TA/ESSES: nvmvm No. saw .40. Patented Au ..22,":a99.

J. E. FBANKEJN. CLUTCH PULLEY.

(Application filed Jan. 19/1899.

(No Model.) 2 Sheets-8heet 2,

WITNESSES: j 4 IIVVENTOR ATTORNEY .iosnru n. FRANKLIN, on BUTLER,

HALF TO EVAN EVANS, OF SAME PLACE.

' PATENT OFFIc-s.

PENNSYLVANIA, ASSLGNOR F ONE-j LUTC H-PULLEY.

SPECIFICATION forming part of Letters Patent No.

' Application filed January 19,1999. seen No. 702,621. (No

To all? whom it may concern.-

' Be it known that I, JosnrExE. FRANKLIN,- zji'oitizen of the United States, residing at Hutler, in the countyof Butler and State of Pennsylvania, have invented new and useful Improvements in Glu'tch Pulleys, of which the following is a specification.

This invention relates to clutch-pulleys;

and the primary object thereof'is to provide a pulley capable of being mounted in extend ed position on the end of a steam or gas en gine shaft.

A further object is to provide certain o htch mcchagism of improved construction.

Ordinarily steam-engine shafts have not suliicient length to accommodate clutch-pul leys of form uowinmse. In the-'drilling---o I) oil and gas wells combined steam and gas engines are coming into general use, and for 611'.-

' longer shafts is expensive,

gines of sity. To equip this type clutch-pulleys are-a necesthe engines with new and and when so equipped the longer shaft and bearings there 5 is a cap-hub embracing the end' of hub 2,

for are in the way; Economic practice calls fdrapulley capable of quick mounting on;

engine-shafts of ordinary "length, or, in other words, shafts hating only short projection from their hearings or from fiy-whcels the nuted thereon and without disturbing such bearings or wheels, and the present invention is directed to supplyin g a pulley which will meet these requirements. a

The invention consists in certain novel features of construction, and in the combination and arrangement of parts hereinafter fully described and claimed, andillustrated by the accompanying-d rawin'gs, in which- Eigure l is'a longitudinal section. Fig. 2 is a face View;v Fig. 3 is a detail view of the projecting stud. one of the clutch-shoe links. Fig. l is a crosssection of one of t is clutch-shoe links, illustrating the swivel.- Fig. 5 is a longitudinal section illustrating the pulley mounted on the end of a theft with a fly-wheel.

Keyed to the projecting end ofengine-shaft i is elongated huh "2, i1ponwhich hub 3 of pulleys hasjsuitrgble bearing.

iaiillg secured therctoby key 6 andlset-screw Fig. i is a similar view of -v hub 23.

631,740, dated August 22,1899. model.) I

7, and this cap-hub confines the pulley loosely on hub 2. Bolted to the outer face of cap 5 areshoeguides 8, and projecting centrally from the cap concentrically with engine-shaft 1 is stud 9, provided with lateral wings 10, which entencl back of guides 8 and throughwhich two of the guide securing bolts extend, thus with ing the stud rigidly with the cap-hub.

11 are the clutch-shoes for engaging the pulley-periphery in usual manner and which move longitudinally behind guides 8, the adjustment being effected by links 12. connecting the shoes with shifting collarlh on. stud '9. A strap and yoke of usual or any pre- 'moving collar-l3, the outward .t-hrustlhflreof. being limited by stop 14. Links 12 are made in two parts, a's-show-n, and swiveled in one part is screw 15, which isthreaded into the other part and held in fixed adjustment by lock-nut 16. Theswivel'is formed by ream- 'ing an annular-cayity in the end. socket of minimum length.

The construction illustratd in Fig. 5 is adapted for engines havin g a fly-wheel at each end of the shaft. In such case the projecting end' 1.9 of the engine'shaft is sufficient tocenter hub 24, while the inner portion of the hub is rooted at 22 to make room for b'olts'20, and the latter at their outer ends hook over the fly-wheel spokes and securely clamp the pulley in place. 24, constitutes a stop for the end ofgiulle y- In'this form of mounting the gpluteh is securely held with practically its whole length in extended position.

one of the link members, and then after the ferred form',(not' shown) are employed for Collar 21, secured hub llaving'thus fully described my invention, what I claim as new, anddesire to secure by Lettcrs'Patent, is-- I 1. In a clutch-pulley attachable in extended position. to the extremity of a shaft, the combination or a hub adapted to be secured at one end tothe extremity of a. shaft and project therefrom longitudinally, a, pulley rotatable on the hub, a cap embracing and fixed to the outer end of the hub and. forming a stop for the pulley, a. support projecting outward from the cap and aliningwith the shaft, clutch mechanismnnd clutch-actuating mechanism operative on the support, substantially ns shown and described.

t a hub adapted, to be secured to theextremi'ty of a shaft and -project longitudinailythere from, a, pulley normally loose .on the'jiub, a.

Tstu'd,' means for securing the stud to tlre outer end' of the; hub and'in line witlr'the shaft clutch mechanisimand cl u tch-actu atin g mechanism operative on the stud, substantially as shown and described..-

r .4. An iniproved-qEntch-pulley consisting'of it hub adapted to beicnrriedby an engine shaft and extended beyond the end th'ered f a pulleynomnztllyloose on the hub, acapdiuii; secured to the outer end of the 'first uie'fi-T tioued hub, shoe-guides on'tho outer facliol.

anism operative on the extended stud, sub-'- cured to and projecting outward from the 40 cap-hub, the stud being provided with iateral wings through which the guide-seen ring bolts cxtcndplutclrsh oes,and shoe-adj u sting mechstz'mtially as shown and described.

hers, one of the membershavingan end socket formed with an annular side depressionfrom which extends :i pin-aperture, a. screw at one end threaded into the-other member of the link and having its shank end apertured and inserted in-the ai nularly-depressed. socket,- ztnd a pin introdrlited through the socket-ap erturc and confined in the shankmpertu re to form a swivel, substnntinllyns shown nndde scribed. v r

- 6. A projecting pulley and: pulley-mounting for en gine-shafts com prisi 11;; a sleeve lowin g short con neeti'on Witha shat t and projecting from the end thereof and rigidly secured thereto, a pulley revo'inble on the sleeve in extended position from the shaft curl -:1 stop on the sleeve for the inner end of the 'pnlley,

a cap'einbracingtheonter 011111 of the sleeve and forming a stop for the outer end of the pulley a; stud secured to and projecting on t- Ward fromthc capjn line centrally with the shaft, and clutch-shoe mechanismoperative 0n the cap and stnihsubstnntinlly as shown and described; v

In testimony whereof I have hereunto set my hand in presence of two subscribing wiimesses. i

JOSEPH E. FRANKLIN.

Witnesses E. E. Yonno, J. B. MA'rns.

4S 5. A clutch-shoe link formed in' two mem-- 

